作者: Michael Farber , D Schutz
DOI: 10.1070/RM2008V063N06ABEH004579
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摘要: This article surveys recent progress of results in topology and dynamics based on techniques closed one-forms. Our approach allows us to draw conclusions about properties flows by studying homotopical cohomological features manifolds. More specifically we describe a Lusternik - Schnirelmann type theory for one-forms, the focusing effect Lyapunov We also discuss treatment invariants cat(X, \xi) cat^1(X, their explicit computation certain examples.